Gone to the Chaco, to eat a taco with Paco. Of course, tacos are not Paraguayan, but Mexican. However, I was surprised to be given a tamal on the rig in Salta- and that is what they called it!

JM: For that bit of serendipitous information when you get back, randomly discovered when Instapundit posted that Popular Mechanics now has back issues online: Popular Mechanics September 1950 : Treasure hunt in a lost world: Diamond mines and mining, Venezuela (Description and travel)